CVE-2022-24750

Source
https://nvd.nist.gov/vuln/detail/CVE-2022-24750
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-24750.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-24750
Aliases
  • GHSA-3mvp-cp5x-vj5g
Published
2022-03-10T00:00:00Z
Modified
2025-11-28T03:35:03.675818Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Low privilege user is able to exploit the service and gain SYSTEM privileges in UltraVNC server
Details

UltraVNC is a free and open source remote pc access software. A vulnerability has been found in versions prior to 1.3.8.0 in which the DSM plugin module, which allows a local authenticated user to achieve local privilege escalation (LPE) on a vulnerable system. The vulnerability has been fixed to allow loading of plugins from the installed directory. Affected users should upgrade their UltraVNC to 1.3.8.1. Users unable to upgrade should not install and run UltraVNC server as a service. It is advisable to create a scheduled task on a low privilege account to launch WinVNC.exe instead. There are no known workarounds if winvnc needs to be started as a service.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/24xxx/CVE-2022-24750.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-269"
    ]
}
References

Affected packages

Git / github.com/ultravnc/ultravnc

Affected ranges

Type
GIT
Repo
https://github.com/ultravnc/ultravnc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

1.*

1.2.4
1.3.1
1.3.2
1.3.2a
1.3.4
1.3.4.1
1.3.4.2
1.3.7dev-2